FR2403775A1 - Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal - Google Patents

Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal

Info

Publication number
FR2403775A1
FR2403775A1 FR7728936A FR7728936A FR2403775A1 FR 2403775 A1 FR2403775 A1 FR 2403775A1 FR 7728936 A FR7728936 A FR 7728936A FR 7728936 A FR7728936 A FR 7728936A FR 2403775 A1 FR2403775 A1 FR 2403775A1
Authority
FR
France
Prior art keywords
stimulation pulse
detecting
pressure
control system
specified time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7728936A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7728936A priority Critical patent/FR2403775A1/en
Publication of FR2403775A1 publication Critical patent/FR2403775A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
    • A61N1/36564—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by blood pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
    • A61B5/02116—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave amplitude
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3956—Implantable devices for applying electric shocks to the heart, e.g. for cardioversion

Abstract

The heartbeat control system which detects the intra cardiac pressure uses a stimulative electrode to apply pulses to the heart. It has at least one pressure detector mounted on a carrier conveying the pressure signal to an amplifier with a shaping and discriminating system which indicates the peak signals. Between 100 and 300 milliseconds after detection of a peak, a stimulation pulse is applied. In the event of a ventricular contraction being detected during this interval, the stimulation pulse is cancelled. The contraction is detected by the pressure detector. The system uses several microprocessors, and the timing system can be varied.
FR7728936A 1977-09-26 1977-09-26 Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal Withdrawn FR2403775A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7728936A FR2403775A1 (en) 1977-09-26 1977-09-26 Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7728936A FR2403775A1 (en) 1977-09-26 1977-09-26 Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal

Publications (1)

Publication Number Publication Date
FR2403775A1 true FR2403775A1 (en) 1979-04-20

Family

ID=9195779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728936A Withdrawn FR2403775A1 (en) 1977-09-26 1977-09-26 Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal

Country Status (1)

Country Link
FR (1) FR2403775A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516797A1 (en) * 1981-11-23 1983-05-27 Medtronic Inc CARDIAC STIMULATOR WITH PHYSIOLOGICAL CONTROL OF STIMULATING CADENCE
EP0080348A1 (en) * 1981-11-19 1983-06-01 Medtronic, Inc. Rate adaptive pacer
EP0244446A1 (en) * 1985-10-07 1987-11-11 Univ Jefferson Myocardial contractility-sensitive pacer.
EP0249820A1 (en) * 1986-06-16 1987-12-23 Pacesetter AB A cardiac pacer for pacing a human heart
EP0257116A1 (en) * 1985-04-11 1988-03-02 Telectronics N.V. Apparatus and method for adjusting heart/pacer rate relative to ejection time to obtain a required cardiac output
FR2632533A1 (en) * 1988-06-13 1989-12-15 Zacouto Fred Device for protecting or repairing the heart
EP0348271A1 (en) * 1988-06-13 1989-12-27 Fred Zacouto Protection means against ailment of the blood, particularly thrombosis, embolism, vascular spasm, haemorrhage, haemopathy and the presence of abnormal elements in the blood
EP0541338A1 (en) * 1991-11-04 1993-05-12 Cardiac Pacemakers, Inc. Implantable cardiac function monitor and stimulator for diagnosis and therapy delivery
WO1993008873A1 (en) * 1991-10-31 1993-05-13 Medtronic, Inc. Automatic sensitivity adjust for cardiac pacemakers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080348A1 (en) * 1981-11-19 1983-06-01 Medtronic, Inc. Rate adaptive pacer
FR2516797A1 (en) * 1981-11-23 1983-05-27 Medtronic Inc CARDIAC STIMULATOR WITH PHYSIOLOGICAL CONTROL OF STIMULATING CADENCE
EP0257116A1 (en) * 1985-04-11 1988-03-02 Telectronics N.V. Apparatus and method for adjusting heart/pacer rate relative to ejection time to obtain a required cardiac output
EP0244446A1 (en) * 1985-10-07 1987-11-11 Univ Jefferson Myocardial contractility-sensitive pacer.
EP0244446A4 (en) * 1985-10-07 1988-03-22 Univ Jefferson Myocardial contractility-sensitive pacer.
EP0249820A1 (en) * 1986-06-16 1987-12-23 Pacesetter AB A cardiac pacer for pacing a human heart
US4722342A (en) * 1986-06-16 1988-02-02 Siemens Aktiengesellschaft Cardiac pacer for pacing a human heart and pacing method
FR2632533A1 (en) * 1988-06-13 1989-12-15 Zacouto Fred Device for protecting or repairing the heart
EP0348271A1 (en) * 1988-06-13 1989-12-27 Fred Zacouto Protection means against ailment of the blood, particularly thrombosis, embolism, vascular spasm, haemorrhage, haemopathy and the presence of abnormal elements in the blood
WO1993008873A1 (en) * 1991-10-31 1993-05-13 Medtronic, Inc. Automatic sensitivity adjust for cardiac pacemakers
EP0541338A1 (en) * 1991-11-04 1993-05-12 Cardiac Pacemakers, Inc. Implantable cardiac function monitor and stimulator for diagnosis and therapy delivery

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FR2403775A1 (en) Heartbeat control system detecting intracardial pressure - applies stimulation pulse within specified time after detecting peak pressure signal

Legal Events

Date Code Title Description
ST Notification of lapse